I hope most of you know about what is what about DNS, the mighty ” Domain Naming System ( or Service or Server ). This DNS is used for Name resolution purposes. So why name resolution is needed ? ( Many questions ha ? ).
In early days Http and other services were accessed by concern [...]

Once you are done with the basic configuration of Cisco ASA 5510, the next step is to enable SSH access from remote computers internally or externally, Steps involved in configuring SSH is as follows
Firewall_5510#config t
Firewall_5510(config)# enable password xxxxx(your password)
Enable password is necessary to enable ssh access
Firewall_5510(config)# username test password test123
User name and password for [...]

Cisco announced that Guinness World Records, an authority for record-breaking achievement around the world, has certified the Cisco Carrier Routing System (CRS-1) as the highest capacity Internet router ever developed. The new router will be the first networking technology to be recognized by Guinness World Records.
The CRS-1, announced in May, is designed to shuttle traffic across the [...]

Category 5
Category 5 transmits at 100MHz frequencies, providing a rated line speed of up to 100Mbit/s and a max cable segment length of 100 meters. Most Category 5 cables, designed for early networks, only used two twisted pairs. Older Category 5 cables continue to make up the bulk of the world’s network infrastructure.
Category 5e
An improved [...]

In a Guest OS with NAT network, out going traffic will show the host IP address. we use this mainly for access something form the guest OS. But some times we want to access the guest OS from the network. Normal case this is not possible and will reach only up to the Host server.
It [...]

GlassFish is an application/web server for deploying Java based web application. To obtain best performance in production environment, some modification has to be made to the default GlassFish installation.
Tip 1:  Java Version
Typically, many performance optimizations are always being incorporated in newer releases of Java SE.  Whenever possible, it is a good idea to upgrade to  [...]

To setup SSL in different java based web servers like Apache, Tomcat, Glassfish, we generally use the keytool command line to create certificate, generate CSR etc…,  which is a bit complicated and confusing if you are not well versed with the keytool command line, We can make our life much more easier, by using Keytool [...]

Here is the step by step Installation procedure of a Syslog Server.  Here I Used Debian platform.  If you are in a different platform please check your file names and path.

PuTTY Connection Manager is a free PuTTY Client Add-on. It can store sensitive information’s like IP address username and passwords of our Servers and Network switches. We can save even commands and scripts in the Connection manager database. Once a connection create and save in the database anyone can access that server without user id [...]

OpenDNS is one of the public DNS Servers. Open DNS provides many useful features like security caching and web filtering. Comparing to other Public DNS services, security is the main feature of open DNS. Here we listed some security features of Open DNS